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Oliver
07-11-2013, 05:13 PM
SAT mathematics Quadratic equation

How can we find the roots of the following quadratic equation:

4x^2+12x=0

Thanks!!

kadence
07-11-2013, 05:21 PM
SAT mathematics Quadratic equation

To solve a quadratic equation by factoring:
1. Start with the equation in the form ax^2+bx+c=0

2. Factor the left hand side

3. Set each factor equal to zero

4. Solve to determine the roots

In your case you have to find the largest value GCF
(greatest common factor) that can be factored from each of the elements of the expression

4x^2+12x=0

4x(x+3)=0

x=0\ or\ x+3=0

x=0\ or\ x=-3


Hope these help!!:D:D

Oliver
07-11-2013, 05:22 PM
Thanks Kadence!